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Finding the Fourth Proportional to 455,832.40, 683,748.60 and 404,656.60

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Solution

The fourth proportional to 455,832.40, 683,748.60 and 404,656.60 is: 606,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,832.40 : 683,748.60 = 404,656.60 : x
  2. Step 2: Convert to fraction form
    455,832.40/683,748.60 = 404,656.60/x
  3. Step 3: Cross multiply
    455,832.40x = 683,748.60 × 404,656.60
  4. Step 4: Simplify right side
    455,832.40x = 276,683,383,730.76
  5. Step 5: Solve for x
    x = 276,683,383,730.76/455,832.40
  6. Step 6: Final answer
    x = 606,984.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.